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-rw-r--r--lib/VMCore/AsmWriter.cpp441
1 files changed, 142 insertions, 299 deletions
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 496f500..18776dd 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -26,8 +26,7 @@
#include "llvm/Operator.h"
#include "llvm/Module.h"
#include "llvm/ValueSymbolTable.h"
-#include "llvm/TypeSymbolTable.h"
-#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
@@ -137,72 +136,57 @@ static void PrintLLVMName(raw_ostream &OS, const Value *V) {
/// TypePrinting - Type printing machinery.
namespace {
class TypePrinting {
- DenseMap<const Type *, std::string> TypeNames;
TypePrinting(const TypePrinting &); // DO NOT IMPLEMENT
void operator=(const TypePrinting&); // DO NOT IMPLEMENT
public:
- TypePrinting() {}
- ~TypePrinting() {}
-
- void clear() {
- TypeNames.clear();
- }
-
- void print(const Type *Ty, raw_ostream &OS, bool IgnoreTopLevelName = false);
+
+ /// NamedTypes - The named types that are used by the current module.
+ std::vector<StructType*> NamedTypes;
- void printAtLeastOneLevel(const Type *Ty, raw_ostream &OS) {
- print(Ty, OS, true);
- }
+ /// NumberedTypes - The numbered types, along with their value.
+ DenseMap<StructType*, unsigned> NumberedTypes;
- /// hasTypeName - Return true if the type has a name in TypeNames, false
- /// otherwise.
- bool hasTypeName(const Type *Ty) const {
- return TypeNames.count(Ty);
- }
+ TypePrinting() {}
+ ~TypePrinting() {}
- /// addTypeName - Add a name for the specified type if it doesn't already have
- /// one. This name will be printed instead of the structural version of the
- /// type in order to make the output more concise.
- void addTypeName(const Type *Ty, const std::string &N) {
- TypeNames.insert(std::make_pair(Ty, N));
- }
+ void incorporateTypes(const Module &M);
-private:
- void CalcTypeName(const Type *Ty, SmallVectorImpl<const Type *> &TypeStack,
- raw_ostream &OS, bool IgnoreTopLevelName = false);
+ void print(Type *Ty, raw_ostream &OS);
+
+ void printStructBody(StructType *Ty, raw_ostream &OS);
};
} // end anonymous namespace.
-/// CalcTypeName - Write the specified type to the specified raw_ostream, making
-/// use of type names or up references to shorten the type name where possible.
-void TypePrinting::CalcTypeName(const Type *Ty,
- SmallVectorImpl<const Type *> &TypeStack,
- raw_ostream &OS, bool IgnoreTopLevelName) {
- // Check to see if the type is named.
- if (!IgnoreTopLevelName) {
- DenseMap<const Type *, std::string> &TM = TypeNames;
- DenseMap<const Type *, std::string>::iterator I = TM.find(Ty);
- if (I != TM.end()) {
- OS << I->second;
- return;
- }
- }
-
- // Check to see if the Type is already on the stack...
- unsigned Slot = 0, CurSize = TypeStack.size();
- while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
- // This is another base case for the recursion. In this case, we know
- // that we have looped back to a type that we have previously visited.
- // Generate the appropriate upreference to handle this.
- if (Slot < CurSize) {
- OS << '\\' << unsigned(CurSize-Slot); // Here's the upreference
- return;
+void TypePrinting::incorporateTypes(const Module &M) {
+ M.findUsedStructTypes(NamedTypes);
+
+ // The list of struct types we got back includes all the struct types, split
+ // the unnamed ones out to a numbering and remove the anonymous structs.
+ unsigned NextNumber = 0;
+
+ std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
+ for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
+ StructType *STy = *I;
+
+ // Ignore anonymous types.
+ if (STy->isAnonymous())
+ continue;
+
+ if (STy->getName().empty())
+ NumberedTypes[STy] = NextNumber++;
+ else
+ *NextToUse++ = STy;
}
+
+ NamedTypes.erase(NextToUse, NamedTypes.end());
+}
- TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
+/// CalcTypeName - Write the specified type to the specified raw_ostream, making
+/// use of type names or up references to shorten the type name where possible.
+void TypePrinting::print(Type *Ty, raw_ostream &OS) {
switch (Ty->getTypeID()) {
case Type::VoidTyID: OS << "void"; break;
case Type::FloatTyID: OS << "float"; break;
@@ -215,257 +199,100 @@ void TypePrinting::CalcTypeName(const Type *Ty,
case Type::X86_MMXTyID: OS << "x86_mmx"; break;
case Type::IntegerTyID:
OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
- break;
+ return;
case Type::FunctionTyID: {
- const FunctionType *FTy = cast<FunctionType>(Ty);
- CalcTypeName(FTy->getReturnType(), TypeStack, OS);
+ FunctionType *FTy = cast<FunctionType>(Ty);
+ print(FTy->getReturnType(), OS);
OS << " (";
for (FunctionType::param_iterator I = FTy->param_begin(),
E = FTy->param_end(); I != E; ++I) {
if (I != FTy->param_begin())
OS << ", ";
- CalcTypeName(*I, TypeStack, OS);
+ print(*I, OS);
}
if (FTy->isVarArg()) {
if (FTy->getNumParams()) OS << ", ";
OS << "...";
}
OS << ')';
- break;
+ return;
}
case Type::StructTyID: {
- const StructType *STy = cast<StructType>(Ty);
- if (STy->isPacked())
- OS << '<';
- OS << '{';
- for (StructType::element_iterator I = STy->element_begin(),
- E = STy->element_end(); I != E; ++I) {
- OS << ' ';
- CalcTypeName(*I, TypeStack, OS);
- if (llvm::next(I) == STy->element_end())
- OS << ' ';
- else
- OS << ',';
- }
- OS << '}';
- if (STy->isPacked())
- OS << '>';
- break;
+ StructType *STy = cast<StructType>(Ty);
+
+ if (STy->isAnonymous())
+ return printStructBody(STy, OS);
+
+ if (!STy->getName().empty())
+ return PrintLLVMName(OS, STy->getName(), LocalPrefix);
+
+ DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
+ if (I != NumberedTypes.end())
+ OS << '%' << I->second;
+ else // Not enumerated, print the hex address.
+ OS << "%\"type 0x" << STy << '\"';
+ return;
}
case Type::PointerTyID: {
- const PointerType *PTy = cast<PointerType>(Ty);
- CalcTypeName(PTy->getElementType(), TypeStack, OS);
+ PointerType *PTy = cast<PointerType>(Ty);
+ print(PTy->getElementType(), OS);
if (unsigned AddressSpace = PTy->getAddressSpace())
OS << " addrspace(" << AddressSpace << ')';
OS << '*';
- break;
+ return;
}
case Type::ArrayTyID: {
- const ArrayType *ATy = cast<ArrayType>(Ty);
+ ArrayType *ATy = cast<ArrayType>(Ty);
OS << '[' << ATy->getNumElements() << " x ";
- CalcTypeName(ATy->getElementType(), TypeStack, OS);
+ print(ATy->getElementType(), OS);
OS << ']';
- break;
+ return;
}
case Type::VectorTyID: {
- const VectorType *PTy = cast<VectorType>(Ty);
+ VectorType *PTy = cast<VectorType>(Ty);
OS << "<" << PTy->getNumElements() << " x ";
- CalcTypeName(PTy->getElementType(), TypeStack, OS);
+ print(PTy->getElementType(), OS);
OS << '>';
- break;
+ return;
}
- case Type::OpaqueTyID:
- OS << "opaque";
- break;
default:
OS << "<unrecognized-type>";
- break;
+ return;
}
-
- TypeStack.pop_back(); // Remove self from stack.
}
-/// printTypeInt - The internal guts of printing out a type that has a
-/// potentially named portion.
-///
-void TypePrinting::print(const Type *Ty, raw_ostream &OS,
- bool IgnoreTopLevelName) {
- // Check to see if the type is named.
- if (!IgnoreTopLevelName) {
- DenseMap<const Type*, std::string>::iterator I = TypeNames.find(Ty);
- if (I != TypeNames.end()) {
- OS << I->second;
- return;
- }
+void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
+ if (STy->isOpaque()) {
+ OS << "opaque";
+ return;
}
-
- // Otherwise we have a type that has not been named but is a derived type.
- // Carefully recurse the type hierarchy to print out any contained symbolic
- // names.
- SmallVector<const Type *, 16> TypeStack;
- std::string TypeName;
-
- raw_string_ostream TypeOS(TypeName);
- CalcTypeName(Ty, TypeStack, TypeOS, IgnoreTopLevelName);
- OS << TypeOS.str();
-
- // Cache type name for later use.
- if (!IgnoreTopLevelName)
- TypeNames.insert(std::make_pair(Ty, TypeOS.str()));
-}
-
-namespace {
- class TypeFinder {
- // To avoid walking constant expressions multiple times and other IR
- // objects, we keep several helper maps.
- DenseSet<const Value*> VisitedConstants;
- DenseSet<const Type*> VisitedTypes;
-
- TypePrinting &TP;
- std::vector<const Type*> &NumberedTypes;
- public:
- TypeFinder(TypePrinting &tp, std::vector<const Type*> &numberedTypes)
- : TP(tp), NumberedTypes(numberedTypes) {}
-
- void Run(const Module &M) {
- // Get types from the type symbol table. This gets opaque types referened
- // only through derived named types.
- const TypeSymbolTable &ST = M.getTypeSymbolTable();
- for (TypeSymbolTable::const_iterator TI = ST.begin(), E = ST.end();
- TI != E; ++TI)
- IncorporateType(TI->second);
-
- // Get types from global variables.
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I) {
- IncorporateType(I->getType());
- if (I->hasInitializer())
- IncorporateValue(I->getInitializer());
- }
-
- // Get types from aliases.
- for (Module::const_alias_iterator I = M.alias_begin(),
- E = M.alias_end(); I != E; ++I) {
- IncorporateType(I->getType());
- IncorporateValue(I->getAliasee());
- }
-
- // Get types from functions.
- for (Module::const_iterator FI = M.begin(), E = M.end(); FI != E; ++FI) {
- IncorporateType(FI->getType());
-
- for (Function::const_iterator BB = FI->begin(), E = FI->end();
- BB != E;++BB)
- for (BasicBlock::const_iterator II = BB->begin(),
- E = BB->end(); II != E; ++II) {
- const Instruction &I = *II;
- // Incorporate the type of the instruction and all its operands.
- IncorporateType(I.getType());
- for (User::const_op_iterator OI = I.op_begin(), OE = I.op_end();
- OI != OE; ++OI)
- IncorporateValue(*OI);
- }
- }
- }
-
- private:
- void IncorporateType(const Type *Ty) {
- // Check to see if we're already visited this type.
- if (!VisitedTypes.insert(Ty).second)
- return;
-
- // If this is a structure or opaque type, add a name for the type.
- if (((Ty->isStructTy() && cast<StructType>(Ty)->getNumElements())
- || Ty->isOpaqueTy()) && !TP.hasTypeName(Ty)) {
- TP.addTypeName(Ty, "%"+utostr(unsigned(NumberedTypes.size())));
- NumberedTypes.push_back(Ty);
- }
-
- // Recursively walk all contained types.
- for (Type::subtype_iterator I = Ty->subtype_begin(),
- E = Ty->subtype_end(); I != E; ++I)
- IncorporateType(*I);
- }
-
- /// IncorporateValue - This method is used to walk operand lists finding
- /// types hiding in constant expressions and other operands that won't be
- /// walked in other ways. GlobalValues, basic blocks, instructions, and
- /// inst operands are all explicitly enumerated.
- void IncorporateValue(const Value *V) {
- if (V == 0 || !isa<Constant>(V) || isa<GlobalValue>(V)) return;
-
- // Already visited?
- if (!VisitedConstants.insert(V).second)
- return;
-
- // Check this type.
- IncorporateType(V->getType());
-
- // Look in operands for types.
- const Constant *C = cast<Constant>(V);
- for (Constant::const_op_iterator I = C->op_begin(),
- E = C->op_end(); I != E;++I)
- IncorporateValue(*I);
- }
- };
-} // end anonymous namespace
-
-
-/// AddModuleTypesToPrinter - Add all of the symbolic type names for types in
-/// the specified module to the TypePrinter and all numbered types to it and the
-/// NumberedTypes table.
-static void AddModuleTypesToPrinter(TypePrinting &TP,
- std::vector<const Type*> &NumberedTypes,
- const Module *M) {
- if (M == 0) return;
-
- // If the module has a symbol table, take all global types and stuff their
- // names into the TypeNames map.
- const TypeSymbolTable &ST = M->getTypeSymbolTable();
- for (TypeSymbolTable::const_iterator TI = ST.begin(), E = ST.end();
- TI != E; ++TI) {
- const Type *Ty = cast<Type>(TI->second);
-
- // As a heuristic, don't insert pointer to primitive types, because
- // they are used too often to have a single useful name.
- if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
- const Type *PETy = PTy->getElementType();
- if ((PETy->isPrimitiveType() || PETy->isIntegerTy()) &&
- !PETy->isOpaqueTy())
- continue;
+
+ if (STy->isPacked())
+ OS << '<';
+
+ if (STy->getNumElements() == 0) {
+ OS << "{}";
+ } else {
+ StructType::element_iterator I = STy->element_begin();
+ OS << "{ ";
+ print(*I++, OS);
+ for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
+ OS << ", ";
+ print(*I, OS);
}
-
- // Likewise don't insert primitives either.
- if (Ty->isIntegerTy() || Ty->isPrimitiveType())
- continue;
-
- // Get the name as a string and insert it into TypeNames.
- std::string NameStr;
- raw_string_ostream NameROS(NameStr);
- formatted_raw_ostream NameOS(NameROS);
- PrintLLVMName(NameOS, TI->first, LocalPrefix);
- NameOS.flush();
- TP.addTypeName(Ty, NameStr);
+
+ OS << " }";
}
-
- // Walk the entire module to find references to unnamed structure and opaque
- // types. This is required for correctness by opaque types (because multiple
- // uses of an unnamed opaque type needs to be referred to by the same ID) and
- // it shrinks complex recursive structure types substantially in some cases.
- TypeFinder(TP, NumberedTypes).Run(*M);
+ if (STy->isPacked())
+ OS << '>';
}
-/// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
-/// type, iff there is an entry in the modules symbol table for the specified
-/// type or one of it's component types.
-///
+
void llvm::WriteTypeSymbolic(raw_ostream &OS, const Type *Ty, const Module *M) {
- TypePrinting Printer;
- std::vector<const Type*> NumberedTypes;
- AddModuleTypesToPrinter(Printer, NumberedTypes, M);
- Printer.print(Ty, OS);
+ // FIXME: remove this function.
+ OS << *Ty;
}
//===----------------------------------------------------------------------===//
@@ -986,7 +813,7 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
// As a special case, print the array as a string if it is an array of
// i8 with ConstantInt values.
//
- const Type *ETy = CA->getType()->getElementType();
+ Type *ETy = CA->getType()->getElementType();
if (CA->isString()) {
Out << "c\"";
PrintEscapedString(CA->getAsString(), Out);
@@ -1043,7 +870,7 @@ static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
}
if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
- const Type *ETy = CP->getType()->getElementType();
+ Type *ETy = CP->getType()->getElementType();
assert(CP->getNumOperands() > 0 &&
"Number of operands for a PackedConst must be > 0");
Out << '<';
@@ -1241,8 +1068,8 @@ void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
if (Context == 0) Context = getModuleFromVal(V);
TypePrinting TypePrinter;
- std::vector<const Type*> NumberedTypes;
- AddModuleTypesToPrinter(TypePrinter, NumberedTypes, Context);
+ if (Context)
+ TypePrinter.incorporateTypes(*Context);
if (PrintType) {
TypePrinter.print(V->getType(), Out);
Out << ' ';
@@ -1259,14 +1086,14 @@ class AssemblyWriter {
const Module *TheModule;
TypePrinting TypePrinter;
AssemblyAnnotationWriter *AnnotationWriter;
- std::vector<const Type*> NumberedTypes;
public:
inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
const Module *M,
AssemblyAnnotationWriter *AAW)
: Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
- AddModuleTypesToPrinter(TypePrinter, NumberedTypes, M);
+ if (M)
+ TypePrinter.incorporateTypes(*M);
}
void printMDNodeBody(const MDNode *MD);
@@ -1279,7 +1106,7 @@ public:
void writeAllMDNodes();
- void printTypeSymbolTable(const TypeSymbolTable &ST);
+ void printTypeIdentities();
void printGlobal(const GlobalVariable *GV);
void printAlias(const GlobalAlias *GV);
void printFunction(const Function *F);
@@ -1374,9 +1201,7 @@ void AssemblyWriter::printModule(const Module *M) {
Out << " ]";
}
- // Loop over the symbol table, emitting all id'd types.
- if (!M->getTypeSymbolTable().empty() || !NumberedTypes.empty()) Out << '\n';
- printTypeSymbolTable(M->getTypeSymbolTable());
+ printTypeIdentities();
// Output all globals.
if (!M->global_empty()) Out << '\n';
@@ -1534,7 +1359,10 @@ void AssemblyWriter::printAlias(const GlobalAlias *GA) {
const Constant *Aliasee = GA->getAliasee();
- if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
+ if (Aliasee == 0) {
+ TypePrinter.print(GA->getType(), Out);
+ Out << " <<NULL ALIASEE>>";
+ } else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
TypePrinter.print(GV->getType(), Out);
Out << ' ';
PrintLLVMName(Out, GV);
@@ -1560,26 +1388,40 @@ void AssemblyWriter::printAlias(const GlobalAlias *GA) {
Out << '\n';
}
-void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
+void AssemblyWriter::printTypeIdentities() {
+ if (TypePrinter.NumberedTypes.empty() &&
+ TypePrinter.NamedTypes.empty())
+ return;
+
+ Out << '\n';
+
+ // We know all the numbers that each type is used and we know that it is a
+ // dense assignment. Convert the map to an index table.
+ std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
+ for (DenseMap<StructType*, unsigned>::iterator I =
+ TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
+ I != E; ++I) {
+ assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
+ NumberedTypes[I->second] = I->first;
+ }
+
// Emit all numbered types.
for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
Out << '%' << i << " = type ";
-
+
// Make sure we print out at least one level of the type structure, so
// that we do not get %2 = type %2
- TypePrinter.printAtLeastOneLevel(NumberedTypes[i], Out);
+ TypePrinter.printStructBody(NumberedTypes[i], Out);
Out << '\n';
}
-
- // Print the named types.
- for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
- TI != TE; ++TI) {
- PrintLLVMName(Out, TI->first, LocalPrefix);
+
+ for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
+ PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
Out << " = type ";
// Make sure we print out at least one level of the type structure, so
// that we do not get %FILE = type %FILE
- TypePrinter.printAtLeastOneLevel(TI->second, Out);
+ TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
Out << '\n';
}
}
@@ -1893,9 +1735,9 @@ void AssemblyWriter::printInstruction(const Instruction &I) {
}
Operand = CI->getCalledValue();
- const PointerType *PTy = cast<PointerType>(Operand->getType());
- const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
- const Type *RetTy = FTy->getReturnType();
+ PointerType *PTy = cast<PointerType>(Operand->getType());
+ FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+ Type *RetTy = FTy->getReturnType();
const AttrListPtr &PAL = CI->getAttributes();
if (PAL.getRetAttributes() != Attribute::None)
@@ -1926,9 +1768,9 @@ void AssemblyWriter::printInstruction(const Instruction &I) {
Out << ' ' << Attribute::getAsString(PAL.getFnAttributes());
} else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
Operand = II->getCalledValue();
- const PointerType *PTy = cast<PointerType>(Operand->getType());
- const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
- const Type *RetTy = FTy->getReturnType();
+ PointerType *PTy = cast<PointerType>(Operand->getType());
+ FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+ Type *RetTy = FTy->getReturnType();
const AttrListPtr &PAL = II->getAttributes();
// Print the calling convention being used.
@@ -2011,7 +1853,7 @@ void AssemblyWriter::printInstruction(const Instruction &I) {
// omit the type from all but the first operand. If the instruction has
// different type operands (for example br), then they are all printed.
bool PrintAllTypes = false;
- const Type *TheType = Operand->getType();
+ Type *TheType = Operand->getType();
// Select, Store and ShuffleVector always print all types.
if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
@@ -2131,7 +1973,15 @@ void Type::print(raw_ostream &OS) const {
OS << "<null Type>";
return;
}
- TypePrinting().print(this, OS);
+ TypePrinting TP;
+ TP.print(const_cast<Type*>(this), OS);
+
+ // If the type is a named struct type, print the body as well.
+ if (StructType *STy = dyn_cast<StructType>(const_cast<Type*>(this)))
+ if (!STy->isAnonymous()) {
+ OS << " = type ";
+ TP.printStructBody(STy, OS);
+ }
}
void Value::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
@@ -2187,14 +2037,7 @@ void Value::printCustom(raw_ostream &OS) const {
void Value::dump() const { print(dbgs()); dbgs() << '\n'; }
// Type::dump - allow easy printing of Types from the debugger.
-// This one uses type names from the given context module
-void Type::dump(const Module *Context) const {
- WriteTypeSymbolic(dbgs(), this, Context);
- dbgs() << '\n';
-}
-
-// Type::dump - allow easy printing of Types from the debugger.
-void Type::dump() const { dump(0); }
+void Type::dump() const { print(dbgs()); }
// Module::dump() - Allow printing of Modules from the debugger.
void Module::dump() const { print(dbgs(), 0); }
generated by cgit v1.1 at 2024-06-20 06:40:29 +0000